After months of posting violent threats against Republicans and law enforcement, a tweet offering to pay for the murder of Immigration and Customs Enforcement (ICE) officers finally landed a Massachusetts man in jail.

Brandon Ziobrowski’s since deleted tweet called for the execution of ICE officers. His tweet read:

I am broke but I will scrounge and literally give $500 to anyone who kills an ice agent. @me seriously who else can pledge get in on this let’s make it work

Ziobroski’s other violent tweets included one post about his urge to “slit” the throat of Sen. John McCain (D-Az.).

Officers from the Federal Bureau of Investigation (FBI) and Joint Terrorism Task Force arrested Ziobroski in New York.

This is not the first time ICE officers were targeted with malice. During the protests in Portland, Oregon, protesters hurled racial slurs at officers who were not white.

Beyond the racial slurs, the mayor of Portland, Ted Wheeler, denied additional police support to the immigration officers, putting their safety at risk.

A mob targeted Portland’s ICE office. Camped out for 5 weeks. Drugs, syringes, human waste. Terrorized neighborhood. Mayor @tedwheeler let it happen. Ordered police to do nothing. Now city is footing bill for biohazard team to clean up mess #OccupyICEPDXhttps://t.co/NILhZFvTBk

Although some do not support the agency, the law enforcement community is sticking together. Ziobroski will face U.S. Attorney Andrew Lelling, and it doesn’t sound like he has much patience for threats against law enforcement.

Lelling told NBC, “I can promise you that, during my tenure, this office will aggressively prosecute those who threaten law enforcement officers.”